return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H8 (Bicyclo[2.2.0]hex-1(4)-ene)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-38.516110
Energy at 298.15K-38.524481
Nuclear repulsion energy113.569675
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3010 2933 0.00      
2 Ag 1714 1670 0.00      
3 Ag 1498 1459 0.00      
4 Ag 1201 1170 0.00      
5 Ag 857 835 0.00      
6 Ag 648 631 0.00      
7 Au 3052 2974 0.00      
8 Au 1134 1105 0.00      
9 Au 1000 974 0.00      
10 Au 218 213 0.00      
11 B1g 2995 2919 0.00      
12 B1g 1482 1445 0.00      
13 B1g 1259 1227 0.00      
14 B1g 1135 1106 0.00      
15 B1g 805 785 0.00      
16 B1u 3071 2993 184.41      
17 B1u 1079 1051 1.89      
18 B1u 820 799 0.09      
19 B1u 106 103 19.98      
20 B2g 3071 2993 0.00      
21 B2g 1040 1014 0.00      
22 B2g 762 742 0.00      
23 B2u 2997 2921 142.59      
24 B2u 1485 1447 0.36      
25 B2u 1220 1188 22.33      
26 B2u 926 902 0.62      
27 B2u 389 379 8.29      
28 B3g 3055 2977 0.00      
29 B3g 1152 1123 0.00      
30 B3g 1056 1029 0.00      
31 B3g 408 398 0.00      
32 B3u 3004 2927 214.77      
33 B3u 1498 1459 0.70      
34 B3u 1246 1214 0.21      
35 B3u 1192 1162 0.00      
36 B3u 793 772 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 26186.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 25519.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-121G
ABC
0.27096 0.10913 0.08272

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 0.000
C2 0.000 -0.671 0.000
C3 1.552 -0.817 0.000
C4 1.552 0.817 0.000
C5 -1.552 0.817 0.000
C6 -1.552 -0.817 0.000
H7 -2.005 -1.268 0.894
H8 -2.005 -1.268 -0.894
H9 -2.005 1.268 0.894
H10 -2.005 1.268 -0.894
H11 2.005 -1.268 0.894
H12 2.005 -1.268 -0.894
H13 2.005 1.268 0.894
H14 2.005 1.268 -0.894

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.34192.14981.55891.55892.14982.92852.92852.27482.27482.92852.92852.27482.2748
C21.34191.55892.14982.14981.55892.27482.27482.92852.92852.27482.27482.92852.9285
C32.14981.55891.63333.50763.10413.69513.69514.21844.21841.09891.09892.31262.3126
C41.55892.14981.63333.10413.50764.21844.21843.69513.69512.31262.31261.09891.0989
C51.55892.14983.50763.10411.63332.31262.31261.09891.09894.21844.21843.69513.6951
C62.14981.55893.10413.50761.63331.09891.09892.31262.31263.69513.69514.21844.2184
H72.92852.27483.69514.21842.31261.09891.78802.53513.10224.00974.39034.74395.0696
H82.92852.27483.69514.21842.31261.09891.78803.10222.53514.39034.00975.06964.7439
H92.27482.92854.21843.69511.09892.31262.53513.10221.78804.74395.06964.00974.3903
H102.27482.92854.21843.69511.09892.31263.10222.53511.78805.06964.74394.39034.0097
H112.92852.27481.09892.31264.21843.69514.00974.39034.74395.06961.78802.53513.1022
H122.92852.27481.09892.31264.21843.69514.39034.00975.06964.74391.78803.10222.5351
H132.27482.92852.31261.09893.69514.21844.74395.06964.00974.39032.53513.10221.7880
H142.27482.92852.31261.09893.69514.21845.06964.74394.39034.00973.10222.53511.7880

picture of Bicyclo[2.2.0]hex-1(4)-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 95.364 C1 C2 C6 95.364
C1 C4 C3 84.636 C1 C4 H13 116.654
C1 C4 H14 116.654 C1 C5 C6 84.636
C1 C5 H9 116.654 C1 C5 H10 116.654
C2 C1 C4 95.364 C2 C1 C5 95.364
C2 C3 C4 84.636 C2 C3 H11 116.654
C2 C3 H12 116.654 C2 C6 C5 84.636
C2 C6 H7 116.654 C2 C6 H8 116.654
C3 C2 C6 169.272 C3 C4 H13 114.225
C3 C4 H14 114.225 C4 C1 C5 169.272
C4 C3 H11 114.225 C4 C3 H12 114.225
C5 C6 H7 114.225 C5 C6 H8 114.225
C6 C5 H9 114.225 C6 C5 H10 114.225
H7 C6 H8 108.887 H9 C5 H10 108.887
H11 C3 H12 108.887 H13 C4 H14 108.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.119      
2 C 0.119      
3 C -0.316      
4 C -0.316      
5 C -0.316      
6 C -0.316      
7 H 0.128      
8 H 0.128      
9 H 0.128      
10 H 0.128      
11 H 0.128      
12 H 0.128      
13 H 0.128      
14 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.412 0.000 0.000
y 0.000 -37.988 0.000
z 0.000 0.000 -36.971
Traceless
 xyz
x 2.067 0.000 0.000
y 0.000 -1.797 0.000
z 0.000 0.000 -0.270
Polar
3z2-r2-0.541
x2-y22.576
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.966 0.000 0.000
y 0.000 9.807 0.000
z 0.000 0.000 7.386


<r2> (average value of r2) Å2
<r2> 127.197
(<r2>)1/2 11.278